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057a6f2632
1413568 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Jane Chu
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057a6f2632 |
mm/memory-failure: teach kill_accessing_process to accept hugetlb tail page pfn
When a hugetlb folio is being poisoned again, try_memory_failure_hugetlb() passed head pfn to kill_accessing_process(), that is not right. The precise pfn of the poisoned page should be used in order to determine the precise vaddr as the SIGBUS payload. This issue has already been taken care of in the normal path, that is, hwpoison_user_mappings(), see [1][2]. Further more, for [3] to work correctly in the hugetlb repoisoning case, it's essential to inform VM the precise poisoned page, not the head page. [1] https://lkml.kernel.org/r/20231218135837.3310403-1-willy@infradead.org [2] https://lkml.kernel.org/r/20250224211445.2663312-1-jane.chu@oracle.com [3] https://lore.kernel.org/lkml/20251116013223.1557158-1-jiaqiyan@google.com/ Link: https://lkml.kernel.org/r/20260120232234.3462258-2-jane.chu@oracle.com Signed-off-by: Jane Chu <jane.chu@oracle.com> Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com> Acked-by: Miaohe Lin <linmiaohe@huawei.com> Cc: Chris Mason <clm@meta.com> Cc: David Hildenbrand <david@kernel.org> Cc: David Rientjes <rientjes@google.com> Cc: Jiaqi Yan <jiaqiyan@google.com> Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Michal Hocko <mhocko@suse.com> Cc: Mike Rapoport <rppt@kernel.org> Cc: Muchun Song <muchun.song@linux.dev> Cc: Naoya Horiguchi <nao.horiguchi@gmail.com> Cc: Oscar Salvador <osalvador@suse.de> Cc: Suren Baghdasaryan <surenb@google.com> Cc: William Roche <william.roche@oracle.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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Jane Chu
|
a148a20401 |
mm/memory-failure: fix missing ->mf_stats count in hugetlb poison
When a newly poisoned subpage ends up in an already poisoned hugetlb
folio, 'num_poisoned_pages' is incremented, but the per node ->mf_stats is
not. Fix the inconsistency by designating action_result() to update them
both.
While at it, define __get_huge_page_for_hwpoison() return values in terms
of symbol names for better readibility. Also rename
folio_set_hugetlb_hwpoison() to hugetlb_update_hwpoison() since the
function does more than the conventional bit setting and the fact three
possible return values are expected.
Link: https://lkml.kernel.org/r/20260120232234.3462258-1-jane.chu@oracle.com
Fixes:
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robin.kuo
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a0f3c0845a |
mm, swap: restore swap_space attr aviod kernel panic
commit |
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Andrey Ryabinin
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9b47d4eea3 |
mm/kasan: fix KASAN poisoning in vrealloc()
A KASAN warning can be triggered when vrealloc() changes the requested
size to a value that is not aligned to KASAN_GRANULE_SIZE.
------------[ cut here ]------------
WARNING: CPU: 2 PID: 1 at mm/kasan/shadow.c:174 kasan_unpoison+0x40/0x48
...
pc : kasan_unpoison+0x40/0x48
lr : __kasan_unpoison_vmalloc+0x40/0x68
Call trace:
kasan_unpoison+0x40/0x48 (P)
vrealloc_node_align_noprof+0x200/0x320
bpf_patch_insn_data+0x90/0x2f0
convert_ctx_accesses+0x8c0/0x1158
bpf_check+0x1488/0x1900
bpf_prog_load+0xd20/0x1258
__sys_bpf+0x96c/0xdf0
__arm64_sys_bpf+0x50/0xa0
invoke_syscall+0x90/0x160
Introduce a dedicated kasan_vrealloc() helper that centralizes KASAN
handling for vmalloc reallocations. The helper accounts for KASAN granule
alignment when growing or shrinking an allocation and ensures that partial
granules are handled correctly.
Use this helper from vrealloc_node_align_noprof() to fix poisoning logic.
[ryabinin.a.a@gmail.com: move kasan_enabled() check, fix build]
Link: https://lkml.kernel.org/r/20260119144509.32767-1-ryabinin.a.a@gmail.com
Link: https://lkml.kernel.org/r/20260113191516.31015-1-ryabinin.a.a@gmail.com
Fixes:
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Kairui Song
|
8a1968bd99 |
mm/shmem, swap: fix race of truncate and swap entry split
The helper for shmem swap freeing is not handling the order of swap
entries correctly. It uses xa_cmpxchg_irq to erase the swap entry, but it
gets the entry order before that using xa_get_order without lock
protection, and it may get an outdated order value if the entry is split
or changed in other ways after the xa_get_order and before the
xa_cmpxchg_irq.
And besides, the order could grow and be larger than expected, and cause
truncation to erase data beyond the end border. For example, if the
target entry and following entries are swapped in or freed, then a large
folio was added in place and swapped out, using the same entry, the
xa_cmpxchg_irq will still succeed, it's very unlikely to happen though.
To fix that, open code the Xarray cmpxchg and put the order retrieval and
value checking in the same critical section. Also, ensure the order won't
exceed the end border, skip it if the entry goes across the border.
Skipping large swap entries crosses the end border is safe here. Shmem
truncate iterates the range twice, in the first iteration,
find_lock_entries already filtered such entries, and shmem will swapin the
entries that cross the end border and partially truncate the folio (split
the folio or at least zero part of it). So in the second loop here, if we
see a swap entry that crosses the end order, it must at least have its
content erased already.
I observed random swapoff hangs and kernel panics when stress testing
ZSWAP with shmem. After applying this patch, all problems are gone.
Link: https://lkml.kernel.org/r/20260120-shmem-swap-fix-v3-1-3d33ebfbc057@tencent.com
Fixes:
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Linus Torvalds
|
6c790212c5 |
Devicetree fixes for v6.19, part 3:
- Fix a refcount leak in of_alias_scan() - Support decending into child nodes when populating nodes in /firmware -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEktVUI4SxYhzZyEuo+vtdtY28YcMFAmlwAPAACgkQ+vtdtY28 YcPl+w//ZFiI8NJWbHPxRE6oDVTM7q79F5ob73fVYbkAUGGQX+sgYngZ/I148JX6 RSn9RDeCC48QYJCcGKSScNgZeKUDxOzBllgp8FhqQ+t+hqXLXtR1ec9VPrpHazf6 xY1OAqRvxsQgwZ4Dn77IypQ1DzufR7PvOGpBMoKwUG+HwRlLX+xsP5fpFhTlP5gV YpdX1Kg9YFFlk3kylMonB+PXXoLkJuvskPDHKVQuAClVKU+TYbG/C9mfnFoLuZke YuQcf6vDOdvZwct0jK8Nv6yyoZSfD3mNkCGYFYR8V+b4xct2sdkUBvXwe1viRFqB 8cyg21s1n87QJOGI+BwfrNQFWaCtD9xn1yUN5Ai/sL4SodiHmcqxvIsHnJYt3UeA S/eNOoeyY97jc67cfoSo8O/FMMmGt0ACoHp+aS/0MgTVglsJUWzi+BqYE8s0Z7uL 0YFjoZrI0B1n8flfM9uAyV4PsdWi73BSOjbFYNJBa2JpYjklGlKA2urCNDCQAgVR 6pNg+w10NXGecaO0i/FHgLwMoz3rq8o7SwvpOOvUOhNM0bkAUGS/LLG3xY5YoMAB Q30fndgsfgrff+3UwbuoPdpXOJxMNiOT5gFy2jGA7NvEhaYOxdQ1S7xRFSaTvQ4k XtdVY8FHmJ19pLDaQSjgFSjysSPy48nQgwy+yCSt1oD9M9D4oMY= =0Vm+ -----END PGP SIGNATURE----- Merge tag 'devicetree-fixes-for-6.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull devicetree fixes from Rob Herring: - Fix a refcount leak in of_alias_scan() - Support descending into child nodes when populating nodes in /firmware * tag 'devicetree-fixes-for-6.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: of: fix reference count leak in of_alias_scan() of: platform: Use default match table for /firmware |
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Linus Torvalds
|
c25f2fb1f4 |
17 hotfixes. 12 are cc:stable, 16 are for MM.
- A 4 patch series from David Hildenbrand which fixes a few things realted to hugetlb PMD sharing - The remainder are singletons, please see their changelogs for details. -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCaW/vEQAKCRDdBJ7gKXxA jtMcAQCK1tKnINRmVjY3UJCqZMAaXvOdOoUIgHDaTXD/DWKm9AD9HRwWzYB4+TNr k/Te8F33d418LcMBTW9CLhrplQpaIAI= =+d1A -----END PGP SIGNATURE----- Merge tag 'mm-hotfixes-stable-2026-01-20-13-09' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull misc fixes from Andrew Morton: - A patch series from David Hildenbrand which fixes a few things related to hugetlb PMD sharing - The remainder are singletons, please see their changelogs for details * tag 'mm-hotfixes-stable-2026-01-20-13-09' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: mm: restore per-memcg proactive reclaim with !CONFIG_NUMA mm/kfence: fix potential deadlock in reboot notifier Docs/mm/allocation-profiling: describe sysctrl limitations in debug mode mm: do not copy page tables unnecessarily for VM_UFFD_WP mm/hugetlb: fix excessive IPI broadcasts when unsharing PMD tables using mmu_gather mm/rmap: fix two comments related to huge_pmd_unshare() mm/hugetlb: fix two comments related to huge_pmd_unshare() mm/hugetlb: fix hugetlb_pmd_shared() mm: remove unnecessary and incorrect mmap lock assert x86/kfence: avoid writing L1TF-vulnerable PTEs mm/vma: do not leak memory when .mmap_prepare swaps the file migrate: correct lock ordering for hugetlb file folios panic: only warn about deprecated panic_print on write access fs/writeback: skip AS_NO_DATA_INTEGRITY mappings in wait_sb_inodes() mm: take into account mm_cid size for mm_struct static definitions mm: rename cpu_bitmap field to flexible_array mm: add missing static initializer for init_mm::mm_cid.lock |
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Linus Torvalds
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c03e9c42ae |
dma-mapping fixes for Linux 6.19
- minor fixes for the corner cases of the SWIOTLB pool management (Robin Murphy) -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQSrngzkoBtlA8uaaJ+Jp1EFxbsSRAUCaW+NbgAKCRCJp1EFxbsS RKU3AQCIpNwIYN6evmnTXO/Y+AFRjsrb1pE1cUyHn5QTY4/o4wEA6BiSgMCrZEbv HTEs1ZSHgLOwBwZre1Z11icGg3BkRgY= =6fBC -----END PGP SIGNATURE----- Merge tag 'dma-mapping-6.19-2026-01-20' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux Pull dma-mapping fixes from Marek Szyprowski: - minor fixes for the corner cases of the SWIOTLB pool management (Robin Murphy) * tag 'dma-mapping-6.19-2026-01-20' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux: dma/pool: Avoid allocating redundant pools mm_zone: Generalise has_managed_dma() dma/pool: Improve pool lookup |
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Linus Torvalds
|
8f7537efbe |
pwm: Two fixes and a maintainer update
Included here are three changes:
- pwm: Ensure ioctl() returns a negative errno on error
This affects two ioctls on /dev/pwmchipX where the return value of
copy_to_user() was passed to userspace. This is fixed to return
-EFAULT now instead.
You might argue that this is an ABI change, but I still think it's
sensible to be fixed because a) other exit paths already return
-EFAULT so userspace must be aware of this return value; b) the
interface is somewhat new (commit v6.17-rc1~181^2~35 ("pwm: Add
support for pwmchip devices for faster and easier userspace access"))
and the only known user is libpwm which relies on the fixed
semantics (and uses the ioctl correctly and thus doesn't trigger that
problematic error path); and c) it's very unlikely that
copy_to_user() fails if a moment before copy_from_user() on the same
memory chunk succeeded.
- pwm: max7360: Populate missing .sizeof_wfhw in max7360_pwm_ops
This fixes an oversight in commit v6.18-rc1~168^2~3^2~6 which added
support for the max7360 driver. There is no user-visible effect
because the .sizeof_wfhw member is just a safe guard that the memory
provided by the core is big enough. While it currently is big enough
and there is no reason to assume that will change, doing that
correctly is necessary.
- MAINTAINERS: Add myself as reviewer for PWM rust drivers
"Myself" here is Michal Wilczynski who cares for the Rust parts of
the pwm subsystem. Several of the patches sent recently for the (for
now) only Rust pwm driver did not add Michal to Cc which resulted in
the patches waiting for review as I thought Michal would care but he
wasn't aware of them.
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Merge tag 'pwm/for-6.19-rc7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux
Pull pwm fixes and a maintainer update from Uwe Kleine-König:
- pwm: Ensure ioctl() returns a negative errno on error
This affects two ioctls on /dev/pwmchipX where the return value of
copy_to_user() was passed to userspace. This is fixed to return
-EFAULT now instead.
- pwm: max7360: Populate missing .sizeof_wfhw in max7360_pwm_ops
This fixes an oversight in the original commit that added support for
the max7360 driver (d93a75d94b79: "pwm: max7360: Add MAX7360 PWM
support"). There is no user-visible effect because the .sizeof_wfhw
member is just a safe guard that the memory provided by the core is
big enough. While it currently is big enough and there is no reason
to assume that will change, doing that correctly is necessary.
- MAINTAINERS: Add Michal Wilczynski as reviewer for PWM rust drivers
Michal cares for the Rust parts of the pwm subsystem. Several of the
patches sent recently for the (for now) only Rust pwm driver did not
add Michal to Cc which resulted in the patches waiting for review as
I thought Michal would care but he wasn't aware of them.
* tag 'pwm/for-6.19-rc7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux:
MAINTAINERS: Add myself as reviewer for PWM rust drivers
pwm: max7360: Populate missing .sizeof_wfhw in max7360_pwm_ops
pwm: Ensure ioctl() returns a negative errno on error
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Yosry Ahmed
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16aca2c98a |
mm: restore per-memcg proactive reclaim with !CONFIG_NUMA
Commit |
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Breno Leitao
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9bc9ccbf4c |
mm/kfence: fix potential deadlock in reboot notifier
The reboot notifier callback can deadlock when calling
cancel_delayed_work_sync() if toggle_allocation_gate() is blocked in
wait_event_idle() waiting for allocations, that might not happen on
shutdown path.
The issue is that cancel_delayed_work_sync() waits for the work to
complete, but the work is waiting for kfence_allocation_gate > 0 which
requires allocations to happen (each allocation is increased by 1) -
allocations that may have stopped during shutdown.
Fix this by:
1. Using cancel_delayed_work() (non-sync) to avoid blocking. Now the
callback succeeds and return.
2. Adding wake_up() to unblock any waiting toggle_allocation_gate()
3. Adding !kfence_enabled to the wait condition so the wake succeeds
The static_branch_disable() IPI will still execute after the wake, but at
this early point in shutdown (reboot notifier runs with INT_MAX priority),
the system is still functional and CPUs can respond to IPIs.
Link: https://lkml.kernel.org/r/20260116-kfence_fix-v1-1-4165a055933f@debian.org
Fixes:
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Suren Baghdasaryan
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cb7d761bf5 |
Docs/mm/allocation-profiling: describe sysctrl limitations in debug mode
When CONFIG_MEM_ALLOC_PROFILING_DEBUG=y, /proc/sys/vm/mem_profiling is
read-only to avoid debug warnings in a scenario when an allocation is
made while profiling is disabled (allocation does not get an allocation
tag), then profiling gets enabled and allocation gets freed (warning due
to the allocation missing allocation tag).
Link: https://lkml.kernel.org/r/20260116184423.2708363-1-surenb@google.com
Fixes:
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Lorenzo Stoakes
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35e2470326 |
mm: do not copy page tables unnecessarily for VM_UFFD_WP
Commit |
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David Hildenbrand (Red Hat)
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8ce720d5bd |
mm/hugetlb: fix excessive IPI broadcasts when unsharing PMD tables using mmu_gather
As reported, ever since commit |
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David Hildenbrand (Red Hat)
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a8682d500f |
mm/rmap: fix two comments related to huge_pmd_unshare()
PMD page table unsharing no longer touches the refcount of a PMD page
table. Also, it is not about dropping the refcount of a "PMD page" but
the "PMD page table".
Let's just simplify by saying that the PMD page table was unmapped,
consequently also unmapping the folio that was mapped into this page.
This code should be deduplicated in the future.
Link: https://lkml.kernel.org/r/20251223214037.580860-4-david@kernel.org
Fixes:
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David Hildenbrand (Red Hat)
|
3937027cae |
mm/hugetlb: fix two comments related to huge_pmd_unshare()
Ever since we stopped using the page count to detect shared PMD page tables, these comments are outdated. The only reason we have to flush the TLB early is because once we drop the i_mmap_rwsem, the previously shared page table could get freed (to then get reallocated and used for other purpose). So we really have to flush the TLB before that could happen. So let's simplify the comments a bit. The "If we unshared PMDs, the TLB flush was not recorded in mmu_gather." part introduced as in commit |
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David Hildenbrand (Red Hat)
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ca1a47cd3f |
mm/hugetlb: fix hugetlb_pmd_shared()
Patch series "mm/hugetlb: fixes for PMD table sharing (incl. using
mmu_gather)", v3.
One functional fix, one performance regression fix, and two related
comment fixes.
I cleaned up my prototype I recently shared [1] for the performance fix,
deferring most of the cleanups I had in the prototype to a later point.
While doing that I identified the other things.
The goal of this patch set is to be backported to stable trees "fairly"
easily. At least patch #1 and #4.
Patch #1 fixes hugetlb_pmd_shared() not detecting any sharing
Patch #2 + #3 are simple comment fixes that patch #4 interacts with.
Patch #4 is a fix for the reported performance regression due to excessive
IPI broadcasts during fork()+exit().
The last patch is all about TLB flushes, IPIs and mmu_gather.
Read: complicated
There are plenty of cleanups in the future to be had + one reasonable
optimization on x86. But that's all out of scope for this series.
Runtime tested, with a focus on fixing the performance regression using
the original reproducer [2] on x86.
This patch (of 4):
We switched from (wrongly) using the page count to an independent shared
count. Now, shared page tables have a refcount of 1 (excluding
speculative references) and instead use ptdesc->pt_share_count to identify
sharing.
We didn't convert hugetlb_pmd_shared(), so right now, we would never
detect a shared PMD table as such, because sharing/unsharing no longer
touches the refcount of a PMD table.
Page migration, like mbind() or migrate_pages() would allow for migrating
folios mapped into such shared PMD tables, even though the folios are not
exclusive. In smaps we would account them as "private" although they are
"shared", and we would be wrongly setting the PM_MMAP_EXCLUSIVE in the
pagemap interface.
Fix it by properly using ptdesc_pmd_is_shared() in hugetlb_pmd_shared().
Link: https://lkml.kernel.org/r/20251223214037.580860-1-david@kernel.org
Link: https://lkml.kernel.org/r/20251223214037.580860-2-david@kernel.org
Link: https://lore.kernel.org/all/8cab934d-4a56-44aa-b641-bfd7e23bd673@kernel.org/ [1]
Link: https://lore.kernel.org/all/8cab934d-4a56-44aa-b641-bfd7e23bd673@kernel.org/ [2]
Fixes:
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Lorenzo Stoakes
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90888b4ae1 |
mm: remove unnecessary and incorrect mmap lock assert
This check was introduced by commit |
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Michal Wilczynski
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0a155a8a24 |
MAINTAINERS: Add myself as reviewer for PWM rust drivers
I would like to help with reviewing the Rust part of the PWM drivers. While I maintain the Rust bindings, adding this separate entry ensures I am automatically CC-ed on the driver implementations (drivers/pwm/*.rs) Signed-off-by: Michal Wilczynski <m.wilczynski@samsung.com> Link: https://patch.msgid.link/20260119-maintain_rust_drivers-v1-1-88711afc559e@samsung.com Signed-off-by: Uwe Kleine-König <ukleinek@kernel.org> |
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Andrew Cooper
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b505f19445 |
x86/kfence: avoid writing L1TF-vulnerable PTEs
For native, the choice of PTE is fine. There's real memory backing the
non-present PTE. However, for XenPV, Xen complains:
(XEN) d1 L1TF-vulnerable L1e 8010000018200066 - Shadowing
To explain, some background on XenPV pagetables:
Xen PV guests are control their own pagetables; they choose the new
PTE value, and use hypercalls to make changes so Xen can audit for
safety.
In addition to a regular reference count, Xen also maintains a type
reference count. e.g. SegDesc (referenced by vGDT/vLDT), Writable
(referenced with _PAGE_RW) or L{1..4} (referenced by vCR3 or a lower
pagetable level). This is in order to prevent e.g. a page being
inserted into the pagetables for which the guest has a writable mapping.
For non-present mappings, all other bits become software accessible,
and typically contain metadata rather a real frame address. There is
nothing that a reference count could sensibly be tied to. As such, even
if Xen could recognise the address as currently safe, nothing would
prevent that frame from changing owner to another VM in the future.
When Xen detects a PV guest writing a L1TF-PTE, it responds by
activating shadow paging. This is normally only used for the live phase
of migration, and comes with a reasonable overhead.
KFENCE only cares about getting #PF to catch wild accesses; it doesn't
care about the value for non-present mappings. Use a fully inverted PTE,
to avoid hitting the slow path when running under Xen.
While adjusting the logic, take the opportunity to skip all actions if the
PTE is already in the right state, half the number PVOps callouts, and
skip TLB maintenance on a !P -> P transition which benefits non-Xen cases
too.
Link: https://lkml.kernel.org/r/20260106180426.710013-1-andrew.cooper3@citrix.com
Fixes:
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Lorenzo Stoakes
|
605f6586ec |
mm/vma: do not leak memory when .mmap_prepare swaps the file
The current implementation of mmap() is set up such that a struct file object is obtained for the input fd in ksys_mmap_pgoff() via fget(), and its reference count decremented at the end of the function via. fput(). If a merge can be achieved, we are fine to simply decrement the refcount on the file. Otherwise, in __mmap_new_file_vma(), we increment the reference count on the file via get_file() such that the fput() in ksys_mmap_pgoff() does not free the now-referenced file object. The introduction of the f_op->mmap_prepare hook changes things, as it becomes possible for a driver to replace the file object right at the beginning of the mmap operation. The current implementation is buggy if this happens because it unconditionally calls get_file() on the mapping's file whether or not it was replaced (and thus whether or not its reference count will be decremented at the end of ksys_mmap_pgoff()). This results in a memory leak, and was exposed in commit |
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Matthew Wilcox (Oracle)
|
b7880cb166 |
migrate: correct lock ordering for hugetlb file folios
Syzbot has found a deadlock (analyzed by Lance Yang):
1) Task (5749): Holds folio_lock, then tries to acquire i_mmap_rwsem(read lock).
2) Task (5754): Holds i_mmap_rwsem(write lock), then tries to acquire
folio_lock.
migrate_pages()
-> migrate_hugetlbs()
-> unmap_and_move_huge_page() <- Takes folio_lock!
-> remove_migration_ptes()
-> __rmap_walk_file()
-> i_mmap_lock_read() <- Waits for i_mmap_rwsem(read lock)!
hugetlbfs_fallocate()
-> hugetlbfs_punch_hole() <- Takes i_mmap_rwsem(write lock)!
-> hugetlbfs_zero_partial_page()
-> filemap_lock_hugetlb_folio()
-> filemap_lock_folio()
-> __filemap_get_folio <- Waits for folio_lock!
The migration path is the one taking locks in the wrong order according to
the documentation at the top of mm/rmap.c. So expand the scope of the
existing i_mmap_lock to cover the calls to remove_migration_ptes() too.
This is (mostly) how it used to be after commit
|
||
|
Gal Pressman
|
90f3c12324 |
panic: only warn about deprecated panic_print on write access
The panic_print_deprecated() warning is being triggered on both read and write operations to the panic_print parameter. This causes spurious warnings when users run 'sysctl -a' to list all sysctl values, since that command reads /proc/sys/kernel/panic_print and triggers the deprecation notice. Modify the handlers to only emit the deprecation warning when the parameter is actually being set: - sysctl_panic_print_handler(): check 'write' flag before warning. - panic_print_get(): remove the deprecation call entirely. This way, users are only warned when they actively try to use the deprecated parameter, not when passively querying system state. Link: https://lkml.kernel.org/r/20260106163321.83586-1-gal@nvidia.com Fixes: |
||
|
Joanne Koong
|
f9a49aa302 |
fs/writeback: skip AS_NO_DATA_INTEGRITY mappings in wait_sb_inodes()
Above the while() loop in wait_sb_inodes(), we document that we must wait
for all pages under writeback for data integrity. Consequently, if a
mapping, like fuse, traditionally does not have data integrity semantics,
there is no need to wait at all; we can simply skip these inodes.
This restores fuse back to prior behavior where syncs are no-ops. This
fixes a user regression where if a system is running a faulty fuse server
that does not reply to issued write requests, this causes wait_sb_inodes()
to wait forever.
Link: https://lkml.kernel.org/r/20260105211737.4105620-2-joannelkoong@gmail.com
Fixes:
|
||
|
Mathieu Desnoyers
|
be31340a4c |
mm: take into account mm_cid size for mm_struct static definitions
Both init_mm and efi_mm static definitions need to make room for the 2
mm_cid cpumasks.
This fixes possible out-of-bounds accesses to init_mm and efi_mm.
Add a space between # and define for the mm_alloc_cid() definition to make
it consistent with the coding style used in the rest of this header file.
Link: https://lkml.kernel.org/r/20251224173358.647691-4-mathieu.desnoyers@efficios.com
Fixes:
|
||
|
Mathieu Desnoyers
|
6ac433f8b2 |
mm: rename cpu_bitmap field to flexible_array
The cpu_bitmap flexible array now contains more than just the cpu_bitmap.
In preparation for changing the static mm_struct definitions to cover for
the additional space required, change the cpu_bitmap type from "unsigned
long" to "char", require an unsigned long alignment of the flexible array,
and rename the field from "cpu_bitmap" to "flexible_array".
Introduce the MM_STRUCT_FLEXIBLE_ARRAY_INIT macro to statically initialize
the flexible array. This covers the init_mm and efi_mm static
definitions.
This is a preparation step for fixing the missing mm_cid size for static
mm_struct definitions.
Link: https://lkml.kernel.org/r/20251224173358.647691-3-mathieu.desnoyers@efficios.com
Fixes:
|
||
|
Mathieu Desnoyers
|
12a6ddfc76 |
mm: add missing static initializer for init_mm::mm_cid.lock
Initialize the mm_cid.lock struct member of init_mm.
Link: https://lkml.kernel.org/r/20251224173358.647691-2-mathieu.desnoyers@efficios.com
Fixes:
|
||
|
Linus Torvalds
|
73c9007d9b |
ata fixes for 6.19-rc7
* A set of fixes for link power management as the recent changes/fixes
introduced regressions with ATAPI devices and with adapters that have
DUMMY ports, preventing an adapter to fully reach a low power state
and thus preventing the system CPU from reaching low power C-states
(from Niklas).
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Merge tag 'ata-6.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux
Pull ata fixes from Damien Le Moal:
- A set of fixes for link power management as the recent changes/fixes
introduced regressions with ATAPI devices and with adapters that have
DUMMY ports, preventing an adapter to fully reach a low power state
and thus preventing the system CPU from reaching low power C-states
(from Niklas)
* tag 'ata-6.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
ata: libata: Print features also for ATAPI devices
ata: libata: Add DIPM and HIPM to ata_dev_print_features() early return
ata: libata: Add cpr_log to ata_dev_print_features() early return
ata: libata-sata: Improve link_power_management_supported sysfs attribute
ata: libata: Call ata_dev_config_lpm() for ATAPI devices
ata: ahci: Do not read the per port area for unimplemented ports
|
||
|
Richard Genoud
|
63faf32666 |
pwm: max7360: Populate missing .sizeof_wfhw in max7360_pwm_ops
The sizeof_wfhw field wasn't populated in max7360_pwm_ops so it was set
to 0 by default.
While this is ok for now because:
sizeof(struct max7360_pwm_waveform) < PWM_WFHWSIZE
in the future, if struct max7360_pwm_waveform grows, it could lead to
stack corruption.
Fixes:
|
||
|
Uwe Kleine-König
|
c198b7773c |
pwm: Ensure ioctl() returns a negative errno on error
copy_to_user() returns the number of bytes not copied, thus if there is
a problem a positive number. However the ioctl callback is supposed to
return a negative error code on error.
This error is a unfortunate as strictly speaking it became ABI with the
introduction of pwm character devices. However I never saw the issue in
real life -- I found this by code inspection -- and it only affects an
error case where readonly memory is passed to the ioctls or the address
mapping changes while the ioctl is active. Also there are already error
cases returning negative values, so the calling code must be prepared to
see such values already.
Fixes:
|
||
|
Linus Torvalds
|
24d479d26b | Linux 6.19-rc6 | ||
|
Linus Torvalds
|
90a855e75a |
Landlock fix for v6.19-rc6
-----BEGIN PGP SIGNATURE----- iIYEABYKAC4WIQSVyBthFV4iTW/VU1/l49DojIL20gUCaWledRAcbWljQGRpZ2lr b2QubmV0AAoJEOXj0OiMgvbSBowBAID4pRQB8EKRNaoqadUWnoSE/wl929Y6KY7i FBf8aODOAP9lOtU/CjL5jHKjt00zKW5gX3o0LIuFzSeuzCFTVx2MBA== =Aef0 -----END PGP SIGNATURE----- Merge tag 'landlock-6.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux Pull landlock fixes from Mickaël Salaün: "This fixes TCP handling, tests, documentation, non-audit elided code, and minor cosmetic changes" * tag 'landlock-6.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux: landlock: Clarify documentation for the IOCTL access right selftests/landlock: Properly close a file descriptor landlock: Improve the comment for domain_is_scoped selftests/landlock: Use scoped_base_variants.h for ptrace_test selftests/landlock: Fix missing semicolon selftests/landlock: Fix typo in fs_test landlock: Optimize stack usage when !CONFIG_AUDIT landlock: Fix spelling landlock: Clean up hook_ptrace_access_check() landlock: Improve erratum documentation landlock: Remove useless include landlock: Fix wrong type usage selftests/landlock: NULL-terminate unix pathname addresses selftests/landlock: Remove invalid unix socket bind() selftests/landlock: Add missing connect(minimal AF_UNSPEC) test selftests/landlock: Fix TCP bind(AF_UNSPEC) test case landlock: Fix TCP handling of short AF_UNSPEC addresses landlock: Fix formatting |
||
|
Linus Torvalds
|
6f32aa9161 |
cgroup: Another fix for v6.19-rc5
- Add Chen Ridong as cpuset reviewer. - Add SPDX license identifiers to cgroup files that were missing them. -----BEGIN PGP SIGNATURE----- iIQEABYKACwWIQTfIjM1kS57o3GsC/uxYfJx3gVYGQUCaW0ToA4cdGpAa2VybmVs Lm9yZwAKCRCxYfJx3gVYGel7AQD3eTbiR/OU0i5yJj6YZsIdVYcteqqsWBkDFnZ3 9pZZugEA+KCwi5eQz+cryKZ7y5fU5g5O6f4OP/lfLEcSmFDpfQU= =QHwy -----END PGP SIGNATURE----- Merge tag 'cgroup-for-6.19-rc5-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup Pull cgroup fixes from Tejun Heo: - Add Chen Ridong as cpuset reviewer - Add SPDX license identifiers to cgroup files that were missing them * tag 'cgroup-for-6.19-rc5-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: kernel: cgroup: Add LGPL-2.1 SPDX license ID to legacy_freezer.c kernel: cgroup: Add SPDX-License-Identifier lines MAINTAINERS: Add Chen Ridong as cpuset reviewer |
||
|
Linus Torvalds
|
f8907398a6 |
Ext4 bug fixes for 6.19:
* Fix an inconsistency in structure size on 32-bit platforms caused by padding
differences for the new EXT4_IOC_[GS]ET_TUNE_SB_PARAM ioctls
* Fix a buffer leak on the error path when dropping the refcount an xattr
value stored in an inode
* Fix missing locking on the error path for the file defragmentation ioctl
leading to a BUG
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Merge tag 'ext4_for_linus-6.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 fixes from Ted Ts'o:
- Fix an inconsistency in structure size on 32-bit platforms caused by
padding differences for the new EXT4_IOC_[GS]ET_TUNE_SB_PARAM ioctls
- Fix a buffer leak on the error path when dropping the refcount an
xattr value stored in an inode
- Fix missing locking on the error path for the file defragmentation
ioctl leading to a BUG
* tag 'ext4_for_linus-6.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: fix iloc.bh leak in ext4_xattr_inode_update_ref
ext4: add missing down_write_data_sem in mext_move_extent().
ext4: fix ext4_tune_sb_params padding
|
||
|
Linus Torvalds
|
e90b81e8ff |
dmaengine fixes for v6.19
Bunch of driver fixes for:
- dma mask fix for mmp pdma driver
- Xilinx regmap max register, uninitialized addr_width fix
- device leak fix for bunch of drivers in the subsystem
- stm32 dmamux, TI crossbar driver fixes for device & of node leak and
route allocation cleanup
- Tegra use afer free fix
- Memory leak fix in Qualcomm gpi and omap-dma driver
- compatible fix for apple driver
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Merge tag 'dmaengine-fix-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine
Pull dmaengine fixes from Vinod Koul:
"A bunch of driver fixes for:
- dma mask fix for mmp pdma driver
- Xilinx regmap max register, uninitialized addr_width fix
- device leak fix for bunch of drivers in the subsystem
- stm32 dmamux, TI crossbar driver fixes for device & of node leak
and route allocation cleanup
- Tegra use afer free fix
- Memory leak fix in Qualcomm gpi and omap-dma driver
- compatible fix for apple driver"
* tag 'dmaengine-fix-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (25 commits)
dmaengine: apple-admac: Add "apple,t8103-admac" compatible
dmaengine: omap-dma: fix dma_pool resource leak in error paths
dmaengine: qcom: gpi: Fix memory leak in gpi_peripheral_config()
dmaengine: sh: rz-dmac: Fix rz_dmac_terminate_all()
dmaengine: xilinx_dma: Fix uninitialized addr_width when "xlnx,addrwidth" property is missing
dmaengine: tegra-adma: Fix use-after-free
dmaengine: fsl-edma: Fix clk leak on alloc_chan_resources failure
dmaengine: mmp_pdma: Fix race condition in mmp_pdma_residue()
dmaengine: ti: k3-udma: fix device leak on udma lookup
dmaengine: ti: dma-crossbar: clean up dra7x route allocation error paths
dmaengine: ti: dma-crossbar: fix device leak on am335x route allocation
dmaengine: ti: dma-crossbar: fix device leak on dra7x route allocation
dmaengine: stm32: dmamux: clean up route allocation error labels
dmaengine: stm32: dmamux: fix OF node leak on route allocation failure
dmaengine: stm32: dmamux: fix device leak on route allocation
dmaengine: sh: rz-dmac: fix device leak on probe failure
dmaengine: lpc32xx-dmamux: fix device leak on route allocation
dmaengine: lpc18xx-dmamux: fix device leak on route allocation
dmaengine: idxd: fix device leaks on compat bind and unbind
dmaengine: dw: dmamux: fix OF node leak on route allocation failure
...
|
||
|
Linus Torvalds
|
3271b25e3d |
phy fixes for 6.19
Bunch of driver fixes:
- Freescale typec orientation switch fix, clearing register fix, assertion
of phy reset during power on
- Qualcomm pcs register clear before using
- stm one off fix
- TI runtimepm error handling, regmap leak fixes
- Rockchip gadget mode disconnection and disruption fixes
- Tegra register level fix
- Broadcom pointer cast warning fix
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Merge tag 'phy-fixes-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy
Pull phy fixes from Vinod Koul:
"A bunch of driver fixes:
- Freescale typec orientation switch fix, clearing register fix,
assertion of phy reset during power on
- Qualcomm pcs register clear before using
- stm one off fix
- TI runtimepm error handling, regmap leak fixes
- Rockchip gadget mode disconnection and disruption fixes
- Tegra register level fix
- Broadcom pointer cast warning fix"
* tag 'phy-fixes-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy:
phy: freescale: imx8m-pcie: assert phy reset during power on
phy: rockchip: inno-usb2: Fix a double free bug in rockchip_usb2phy_probe()
phy: broadcom: ns-usb3: Fix Wvoid-pointer-to-enum-cast warning (again)
phy: tegra: xusb: Explicitly configure HS_DISCON_LEVEL to 0x7
phy: rockchip: inno-usb2: fix communication disruption in gadget mode
phy: rockchip: inno-usb2: fix disconnection in gadget mode
phy: ti: gmii-sel: fix regmap leak on probe failure
phy: sparx5-serdes: make it selectable for ARCH_LAN969X
phy: ti: da8xx-usb: Handle devm_pm_runtime_enable() errors
phy: stm32-usphyc: Fix off by one in probe()
phy: qcom-qusb2: Fix NULL pointer dereference on early suspend
phy: fsl-imx8mq-usb: Clear the PCS_TX_SWING_FULL field before using it
dt-bindings: phy: qcom,sc8280xp-qmp-pcie-phy: Update pcie phy bindings for qcs8300
phy: fsl-imx8mq-usb: fix typec orientation switch when built as module
|
||
|
Linus Torvalds
|
56bc8a18aa |
soundwire fix for 6.19
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||
|
Linus Torvalds
|
27983960f0 |
USB fixes for 6.19-rc6
Here are some small USB fixes and new device ids for 6.19-rc6
Included in here are:
- new usb-serial device ids
- dwc3-apple driver fixes to get things working properly on that
hardware platform
- ohci/uhci platfrom driver module soft-deps with ehci to remove a
runtime warning that sometimes shows up on some platforms.
- quirk for broken devices that can not handle reading the BOS
descriptor from them without going crazy.
- usb-serial driver fixes
- xhci driver fixes
- usb gadget driver fixes
All of these except for the last xhci fix has been in linux-next for a
while. The xhci fix has been reported by others to solve the issue for
them, so should be ok.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-6.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some small USB fixes and new device ids for 6.19-rc6
Included in here are:
- new usb-serial device ids
- dwc3-apple driver fixes to get things working properly on that
hardware platform
- ohci/uhci platfrom driver module soft-deps with ehci to remove a
runtime warning that sometimes shows up on some platforms.
- quirk for broken devices that can not handle reading the BOS
descriptor from them without going crazy.
- usb-serial driver fixes
- xhci driver fixes
- usb gadget driver fixes
All of these except for the last xhci fix has been in linux-next for a
while. The xhci fix has been reported by others to solve the issue for
them, so should be ok"
* tag 'usb-6.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
xhci: sideband: don't dereference freed ring when removing sideband endpoint
usb: gadget: uvc: retry vb2_reqbufs() with vb_vmalloc_memops if use_sg fail
usb: gadget: uvc: return error from uvcg_queue_init()
usb: gadget: uvc: fix interval_duration calculation
usb: gadget: uvc: fix req_payload_size calculation
usb: dwc3: apple: Ignore USB role switches to the active role
usb: host: xhci-tegra: Use platform_get_irq_optional() for wake IRQs
USB: OHCI/UHCI: Add soft dependencies on ehci_platform
usb: dwc3: apple: Set USB2 PHY mode before dwc3 init
USB: serial: f81232: fix incomplete serial port generation
USB: serial: ftdi_sio: add support for PICAXE AXE027 cable
USB: serial: option: add Telit LE910 MBIM composition
usb: core: add USB_QUIRK_NO_BOS for devices that hang on BOS descriptor
dt-bindings: usb: qcom,dwc3: Correct MSM8994 interrupts
dt-bindings: usb: qcom,dwc3: Correct IPQ5018 interrupts
tcpm: allow looking for role_sw device in the main node
usb: dwc3: Check for USB4 IP_NAME
|
||
|
Linus Torvalds
|
5d1765a96c |
i2c-for-6.19-rc6
riic, imx-lpi2c: suspend/resume fixes qcom-geni: DMA handling fix iproc: correct DT binding description -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEOZGx6rniZ1Gk92RdFA3kzBSgKbYFAmlssnIACgkQFA3kzBSg KbbsDBAAkVM62lA/c2/JHjF/4qH4aDaqXSMNLdqMgy732HrVSayeltXvnRvVFR/d R1jdE8YAfC2xamCN31iHteHVcoynoX9blSToI2QhxRpWlcgT1rHerkRqiWnfHYFA 3iwSsx5V/l1nL2EqkbHdpMjNFydZYf1FU6eS5y/7scVuhoGG9gcRZB7I+W7pEF17 uDiReBPdY3hKhzYR0nu4Zlq5P7WoHcdp1vqv/J9s53RqAA/sWkCEjHIoWypwzQDX 6K0zN+u0TTZWCIlI7UaU0OI0QLBgKhfp3PeTUIJ9JSvodcnVBm/YAfAnAt3onyV0 3YxemVr2mC8CIl9QCVs6moXPYpwn2gibVENass6Xn23E8hrkyDMKqwHZCpmr6vn3 oWC4uTcVtu5ezwxnwrvxULF1V6Io0bMb4j9qUw9KzpwN/QVH0LQKhBQs0GWIIbPR qscMnP1KuEbSBGetRlO0HRhHU/zViXHLO6ngbjv+d3/UYqfA/xr9PTzgbnsdMxLK MdtkG3Q9hYwasfAfCmFRrzsebJrkf307W3enLowhlpi2zkmV3y8lAQYuhvvOGJTx p1K4Xd+sQEkBcd6JJuW8VbBbwW+8G4y7wODYnEnW4I4aW3dAjbB8EV9cQ7fQ6ZKh PVUx22gQ5vOCvCzNbrH+Etd5fl/3Wp60hFkFC5wpafvZsGXdcMI= =o2qp -----END PGP SIGNATURE----- Merge tag 'i2c-for-6.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c fixes from Wolfram Sang: - riic, imx-lpi2c: suspend/resume fixes - qcom-geni: DMA handling fix - iproc: correct DT binding description * tag 'i2c-for-6.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: imx-lpi2c: change to PIO mode in system-wide suspend/resume progress i2c: qcom-geni: make sure I2C hub controllers can't use SE DMA i2c: riic: Move suspend handling to NOIRQ phase dt-bindings: i2c: brcm,iproc-i2c: Allow 2 reg entries for brcm,iproc-nic-i2c |
||
|
Linus Torvalds
|
93fc4e044a |
- Make sure the memory-mapped memory controller registers BAR gets unmapped
when the driver memory allocation fails. Fix that in both x38 and i3200 EDAC drivers as former has copied the bug from the latter, it looks like -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmlsv50ACgkQEsHwGGHe VUpDoQ//bQlRmb9O09RqtD13R1ivlgYhucv9qUb8beLAY7xDpXVL/9S8dE/bHnRF IXl9KvCKFzFMxEAlKAqOI/Xv21l51KdqgFz6JJo4QIXzPUbMBZwdXSnZd3HGf4i8 f3tKTgJZQMY0egHuThiFxOrPdfGzxHRQ6Vv2K00b6jzn04Vzb0oGmZf1Mnvw7iXx zUusPIX72x5RzcA9enLj4hJvUdJTlCir9YHYulPW+8Uik6OTLNhMg+rzMPD0uhca JWz7XWRH7V+GA8wFTMaEe4UkGlfdsCSc2/ngsdrI+N1Om6H6r1MK+MlOowVal3LQ LSMacK+POMI5b/5qLti+10vQeYb/6Xf3C4hG5sEpAEqBpbiCIB16L9otvzMKzqEE LkMRN5qXaxGc9cd8h1JUKpdZoj2+aFKvsX0bMYzTgf3DgNIYoTTWswY4OXWYkjfN sHtaYiFPl0lf2Ran1ztM290vWiIeFEkYgatmWUd7rPHU/WbaLwL6KL0L2nQIGbas 9KEnZSz+LxTqZ8WWje+EiyG/EQW+7tpN5coFQ1Xu8kk087J217jCEnZ+VDjGNkEU VMoNupXM3XJ7fWarEnL8LXGNX1sV1s2jdTWOToD/ipO5UkLi/Bh/v0UEVvrsx4Id eFiddMoB+9jVbpfiqXy7hZKZXBzbdqOOzddGze1VDii+ROG2Wqc= =d17O -----END PGP SIGNATURE----- Merge tag 'edac_urgent_for_v6.19_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras Pull EDAC fixes from Borislav Petkov: "Make sure the memory-mapped memory controller registers BAR gets unmapped when the driver memory allocation fails Fix that in both x38 and i3200 EDAC drivers as former has copied the bug from the latter, it looks like" * tag 'edac_urgent_for_v6.19_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras: EDAC/x38: Fix a resource leak in x38_probe1() EDAC/i3200: Fix a resource leak in i3200_probe1() |
||
|
Linus Torvalds
|
e503f539dc |
Misc x86 fixes:
- Fix resctrl initialization on Hygon CPUs
- Fix resctrl memory bandwidth counters
on Hygon CPUs
- Fix x86 self-tests build bug
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-urgent-2026-01-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull misc x86 fixes from Ingo Molnar:
- Fix resctrl initialization on Hygon CPUs
- Fix resctrl memory bandwidth counters on Hygon CPUs
- Fix x86 self-tests build bug
* tag 'x86-urgent-2026-01-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
selftests/x86: Add selftests include path for kselftest.h after centralization
x86/resctrl: Fix memory bandwidth counter width for Hygon
x86/resctrl: Add missing resctrl initialization for Hygon
|
||
|
Linus Torvalds
|
b671c1dad2 |
Fix the update_needs_ipi() check in the hrtimer code that
may result in incorrect skipping of hrtimer IPIs. Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmlsr+oRHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1iLPw/+OuA8hPlFY8nxrpVKASoiP7u+mGQ82Qmf xdf1Kimpmc5ydpGsxpRLKY19l3fLuGSJuOa2Url0Ro52JHxU+yPPOkN2ONjsPxLI mFMdhyXiS1PIgYt307OmNmKFadxdg5cGJTKY0wIS9JCcPFxI5Y3NFhWZ4ybPlGHK /bxtsjUctekUTDVahqP65lRIYMvjhO1I2LQfoPQyg/C+2n6Owy7TAX8xZovDZLHz a9RkkX6FPc8aR8Kj1VYm1yABNlUhGvFvTE6wfcfOMjiHHeDv2qYdwNHF2tK2eoKC QX609zBTCT/n0ioZlikLrKDZitj6uRgS2blBc+hodHEs4cY5gE2umWSU4IirT7HH GDjvG/vns/BLRr97gPdMaJ+N/sjdCSQ5tsDRrvHwCGC27VXPu3O3DYU128eH4eXW +KNJGQHJvR7slBKElQ4wxJaLhbLBB5rw/AqqdXa4PU8LqvMBBNcLZjHnrYlbD5Ei ovdX5VtRYOjrVl7pCNrXXdzFfBpXK+sOPHQMoJxnLHKXO+cdsZz8zIB7AHZEVe20 CIOMRcfgw2nvpS+0MqaHzre0ixyq+U2XSIu7MRIlq8GZ+zdjiVMqx3pPa19QRdyr hA9JupeRC9eZdymlms2MiSzqIVmWSVvgcyhIFSYw9yLe55vXcGyArF27RKGtBHRA uF+K5aT8gqA= =CAdu -----END PGP SIGNATURE----- Merge tag 'timers-urgent-2026-01-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer fix from Ingo Molnar: "Fix the update_needs_ipi() check in the hrtimer code that may result in incorrect skipping of hrtimer IPIs" * tag 'timers-urgent-2026-01-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: hrtimer: Fix softirq base check in update_needs_ipi() |
||
|
Linus Torvalds
|
837c8180e3 |
Misc DL scheduler fixes, mainly for a new category of bugs that were
discovered and fixed recently:
- Fix a race condition in the DL server
- Fix a DL server bug which can result in incorrectly going
idle when there's work available
- Fix DL server bug which triggers a WARN() due to broken
get_prio_dl() logic and subsequent misbehavior
- Fix double update_rq_clock() calls
- Fix setscheduler() assumption about static priorities
- Make sure balancing callbacks are always called
- Plus a handful of preparatory commits for the fixes.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-urgent-2026-01-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar:
"Misc deadline scheduler fixes, mainly for a new category of bugs that
were discovered and fixed recently:
- Fix a race condition in the DL server
- Fix a DL server bug which can result in incorrectly going idle when
there's work available
- Fix DL server bug which triggers a WARN() due to broken
get_prio_dl() logic and subsequent misbehavior
- Fix double update_rq_clock() calls
- Fix setscheduler() assumption about static priorities
- Make sure balancing callbacks are always called
- Plus a handful of preparatory commits for the fixes"
* tag 'sched-urgent-2026-01-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/deadline: Use ENQUEUE_MOVE to allow priority change
sched: Deadline has dynamic priority
sched: Audit MOVE vs balance_callbacks
sched: Fold rq-pin swizzle into __balance_callbacks()
sched/deadline: Avoid double update_rq_clock()
sched/deadline: Ensure get_prio_dl() is up-to-date
sched/deadline: Fix server stopping with runnable tasks
sched: Provide idle_rq() helper
sched/deadline: Fix potential race in dl_add_task_root_domain()
sched/deadline: Remove unnecessary comment in dl_add_task_root_domain()
|
||
|
Linus Torvalds
|
cee4757965 |
Fix two objtool build failures that trigger in uncommon build
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||
|
Linus Torvalds
|
8562711ac0 |
Fix a riscv-imsic irqchip driver regression.
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||
|
Yang Erkun
|
d250bdf531 |
ext4: fix iloc.bh leak in ext4_xattr_inode_update_ref
The error branch for ext4_xattr_inode_update_ref forget to release the
refcount for iloc.bh. Find this when review code.
Fixes:
|
||
|
Julian Sun
|
0ef7ef4227 |
ext4: add missing down_write_data_sem in mext_move_extent().
Commit |
||
|
Arnd Bergmann
|
cd16edba1c |
ext4: fix ext4_tune_sb_params padding
The padding at the end of struct ext4_tune_sb_params is architecture
specific and in particular is different between x86-32 and x86-64,
since the __u64 member only enforces struct alignment on the latter.
This shows up as a new warning when test-building the headers with
-Wpadded:
include/linux/ext4.h:144:1: error: padding struct size to alignment boundary with 4 bytes [-Werror=padded]
All members inside the structure are naturally aligned, so the only
difference here is the amount of padding at the end. Make the padding
explicit, to have a consistent sizeof(struct ext4_tune_sb_params) of
232 on all architectures and avoid adding compat ioctl handling for
EXT4_IOC_GET_TUNE_SB_PARAM/EXT4_IOC_SET_TUNE_SB_PARAM.
This is an ABI break on x86-32 but hopefully this can go into 6.18.y early
enough as a fixup so no actual users will be affected. Alternatively, the
kernel could handle the ioctl commands for both sizes (232 and 228 bytes)
on all architectures.
Fixes:
|
||
|
Linus Torvalds
|
e84d960149 |
for-6.19-rc5-tag
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Merge tag 'for-6.19-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
- with large folios in use, fix partial incorrect update of a reflinked
range
- fix potential deadlock in iget when lookup fails and eviction is
needed
- in send, validate inline extent type while detecting file holes
- fix memory leak after an error when creating a space info
- remove zone statistics from sysfs again, the output size limitations
make it unusable, we'll do it in another way in another release
- test fixes:
- return proper error codes from block remapping tests
- fix tree root leaks in qgroup tests after errors
* tag 'for-6.19-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: remove zoned statistics from sysfs
btrfs: fix memory leaks in create_space_info() error paths
btrfs: invalidate pages instead of truncate after reflinking
btrfs: update the Kconfig string for CONFIG_BTRFS_EXPERIMENTAL
btrfs: send: check for inline extents in range_is_hole_in_parent()
btrfs: tests: fix return 0 on rmap test failure
btrfs: tests: fix root tree leak in btrfs_test_qgroups()
btrfs: release path before iget_failed() in btrfs_read_locked_inode()
|
||
|
Linus Torvalds
|
47622aa8b6 |
LoongArch fixes for v6.19-rc6
-----BEGIN PGP SIGNATURE----- iQJKBAABCAA0FiEEzOlt8mkP+tbeiYy5AoYrw/LiJnoFAmlq+z4WHGNoZW5odWFj YWlAa2VybmVsLm9yZwAKCRAChivD8uImeuiPEACvL76/lHI+5aww1PfokzjCdQYk /ked1m/3BmLhufqFvLDhraLTA/6rFF7j2KdHm2RESIS6bk/YaN7RMh9iAGpN+APu /pF0ppPMPuvpJGdWuWSPvTdwCMuA5ksvMl+CPRthSYqsQ42d1h5alirWOkbtLTW7 EMmgnMZAL6VHnyiWHjMn86BCkvC/2DHyvtC7WsMh1LNa6Cqlcu/sxaMC73sBf9qZ FbB5dziLXjpkJp7QIJH0KbrRhtw8CzCbW4xuwJO2u/dR+9Xl3LT9HD8/aYa11aXE Q9QW3M7d1h8+cJIbdrTjLqSCV49hwPC4YpA5d4ElFcJJF68gpMfBs+ZLzLc5OkK3 mapw0dMWlXbkOEAC0dq0NIf3jpIgVdlaZQcC6jFNNiAgWnQv+qqfvvtw7A/bK3K+ xwM+wcSpMe0zEmxFKz4xhDJ3PdMvgyrSBkcItgcdiEd107fLskYHuMUzHPMwh6oA uGJ+4u0sCXLFubhjhkQGgTyUbk/cgOBcCAnqv0gTQfcTdF0fCLuSFcpUjtunq9wu AqKxr3kA4YkMW7uG2pliCJyUL1/jV2kIMhekxJN2Q8WQPhZ6antSUQhJZDOl8xj2 QRaoprMZ/uUmH2vMmGMiO+7TTglDH8DrkVWdqo4kxZjvnIcXzkBs0bAvFdzo3mlS Mozpbd+D8LdURSMjhA== =0h8y -----END PGP SIGNATURE----- Merge tag 'loongarch-fixes-6.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson Pull LoongArch fixes from Huacai Chen: "Remove redundant code in head.S, fix PMU counter allocation for mixed- type event groups, fix a lot of dts build warnings, and fix kvm_device memory leaks" * tag 'loongarch-fixes-6.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson: LoongArch: KVM: Fix kvm_device leak in kvm_pch_pic_destroy() LoongArch: KVM: Fix kvm_device leak in kvm_eiointc_destroy() LoongArch: KVM: Fix kvm_device leak in kvm_ipi_destroy() LoongArch: dts: loongson-2k1000: Fix i2c-gpio node names LoongArch: dts: loongson-2k2000: Add default interrupt controller address cells LoongArch: dts: loongson-2k1000: Add default interrupt controller address cells LoongArch: dts: loongson-2k0500: Add default interrupt controller address cells LoongArch: dts: Describe PCI sideband IRQ through interrupt-extended LoongArch: Fix PMU counter allocation for mixed-type event groups LoongArch: Remove redundant code in head.S |